As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING T/C 78472040 FOUND MAGNETIC PARTICLES IN AGB/TGB SCAVENGE MCD ON NR 1 ENGINE. GROUNDED - YES. INSPECTED STARTER MAGNETIC PLUG ON NR 1 ENG FOUND NO MATERIAL ON MAGNETIC PLUG REF AMM 79-00-00-240-001-F00. REMOVED AND REPLACED NR 1 ENGINE REF TC 78471000 AND 78471001.